title: Comparison instrumentation reamers and files versus a flat-sided design of conventional noninterrupted, flat-sided design.
mesh_terms: D000180:Acrylic Resins; D000704:Analysis of Variance; D003786:Dental Pulp Cavity / Q000033:anatomy & histology; D004867:Equipment Design; D006801:Humans; D008422:Materials Testing; D003765:Models, Dental; D018915:Root Canal Preparation / Q000295:instrumentation*; D013193:Stainless Steel; D013499:Surface Properties; D013997:Time Factors; D019227:Tooth Apex / Q000033:anatomy & histology
chemical_list: D000180:Acrylic Resins; D013193:Stainless Steel